Gearing.



J. DAIN.

GEARING.

APPLICATION FILED MA! 22. 1909.

Patented June 4, 1912.

5 SHEETS-SHEET l.

jzoez%r COLUMBIA PLANOGRAPH 60.. WASHINGTON. D. C.

J. DAIN.

GEARING. 7 APPLICATION FILED MAY 22. 1909.

Patented June 4, 1912.

5 BHEETSSHEET 2.

0., WASHINGTON D C I. DAIN.

GBARING.

APPLICATION FILED MAY 22 1909.

Patented June 4, 1912.

6 SHEETS-SHEET 3.

J. DAIN.

GEARING.

APPLICATION FILED MAY 22. 1909.

Patented June 4, 1912.

5 SHEETS-SHEET 4.

i aw n J. DAIN.

GEARING. APPLICATION FILED MAY 22. 1909.

1,028,551 Patented June 4, 1912.

5 SHEETB-SHEET 5.

r orrron JOSEPH DAIN, 0F OTTUMWA, IOWA.

GEARING.

Specification of Letters Patent.

Application filed May 22, 1909.

To all whom it may concern:

Be it known that I, JOSEPH DAIN, a citizen of the United States, residing at Ottumwa, in the county of VVapello, State of Iowa, have invented certain new and useful Improvements in Gearing, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to gearing for motor vehicles and other uses, and has particularly to do with motor vehicles ofthe frictiondrive type.

It has for its objects (1) to provide a friction-driven motor vehicle with improved means for cutting out the friction drive and driving the vehicle directly from the engine; (2) to provide certain improvements in friction driven motor vehicles of the type described and claimed in my pending application, Ser. No. 400,371, filed November 2, 1907, in which the driving is effected by means of disks set at an angle to eachother and operating to drive an intermediate disk, my present improvements consisting, generally speaking, in providing means for cutting out the friction drive mechanism and driving the vehicle directly from the engine, and in providing improved mechanism for pressing the driven disk more or less firmly in contact with thedrive disks; to provide various other improvements in friction driven motor vehicles of the type referred to, and especially in vehicles having the general construction illustrated and described in my pending application, Ser. No.

461,568, filed November 7, 1908. I accomplish these objects as illustrated in the drawings and as hereinafter described.

. What I regard as new is set forth in the claims.

In the drawings,Figure 1 is a side view of the chassis of my improved motor vehicle, some parts being in section; Fig. 2 is a vertical cross section on line 22 of Fig. 1; Fig. 8 is a plan view; Fig. 4 is an enlarged detail, being a partial central longitudinal vertical section of the transmission, showing the arrangement of the parts when operating by friction; Fig. 5 is a similar view, showing the arrangement of the parts when operating by direct drive, the friction drive being cut out of service; Fig. 6 is an elevation of the front face of the beveled drive disk; Fig. 7 is an elevation of the forward face of the flywheel; Fig. 8 is a partial sectional view on line 8-8 of Fig. 4; Fig. 9 is a detail, being Patented June 4, 1912.

Serial No. 497,645.

a partial sectional View on line 9-9 of Fig. 4; Fig. 10 is a detail, being a View of the lower end of the foot-lever and connections, looking to the left in Fig. 4; and Fig. 11 is a view, partly in section, taken on line 1111 of Fig.4, showing the arm by which the driven disk is shifted on the propeller shaft, and some of its connections.

In my pending application, Ser. No. 400,371, above referred to the propeller shaft leading to the differential at the rear axle carries a friction disk which is movable longitudinally thereon and is driven by its frictional engagement with two drive disks set at an angle to each other, their lower margins being closest together, so that the driven disk fits between them and may be pressed down more or less firmly in contact with them, but may be lifted out of engagement with them so that it may readily be moved toward and from the centers of said drive disks to vary its speed or to reverse it. In my application, Ser. No. 461,568, the same generic features are employed, and in addition the angularlydisposed friction disks are themselves driven by a beveled drive disk which engages their peripheries at the front, said beveled drive disk being driven from the engine orank' are, therefore, to be construed accordingly.

Referring now to the drawings,-1213 indicate upper and lower members of the frame of the vehicle, which is preferably of the construction shown in my pending application Ser. No. 461,569, filed November 7, 1908, but may be of any other'suitable construction.

14 indicates the main drive or propeller shaft, which extends longitudinally of the frame at the center thereof, as shown in Fig. 3, and is connected at its rear end by a universal coupling 15 with a rear shaft 16 which connects with the usual differential carriage in a housing 17 at the rear axle.

18 indicates what will be termed a different positions driven disk", which is mounted on the forward end of the propeller shaft 14 so as to slide longitudinally thereof, said shaft being provided with a keyway 19 in which fits a key 20 that lies in a suitable groove in the hub 21 of the driven disk 18, as best shown in Figs. 4 and 5. The driven disk 18 is provided with a rim 22 of suitable friction material, and on its forward or inner face is provided with a conical clutch member 23, as best shown in Figs. 4 and 5. The driven disk 18 is moved longitudinally upon the propeller shaft 14 by means of a hand-lever 24 pivotally mounted on a pivot 25 extending transversely of the frame 12 and provided with a rack 26 and dog 27 of the usual construction for locking it in its of adjustment. The lower end of the lever 24 is forked, as shown at 28 in Fig. 3, so as to straddle the propeller'shaft and is connected by connecting rods 294-30 with the opposite sides of the hub 21 of the driven disk, as shown in Fig.

3. By this construction the forward push or backward pull is applied equally to both sides of the driven disk so that it is not cramped on the propeller shaft when shifted. The fork also provides for free up and down movement of the upper member of the frame which carries the body of the vehicle. By this construct-ion the driven disk may readily be shifted longitudinally of the propeller shaft to vary the speed thereof, as hereinafter more fully described.

3l 32 indicate beveled friction disks, which are set at an angle to each other with their lower edges closest together, as shown in Figs. 2 and 3. Said disks are suitably mounted at the inner ends of shafts 3334 suitably journaled in brackets 3536, respectively, mounted at opposite sides of the frame of the machine, as best shown in Fig.

. 2. The shafts 3334 are so set that their inner ends projected will intersect the axis of the propeller shaft when the driven disk is in operative engagement with the friction disks.31-32. Thus movement of the driven disk 18 upon the propeller shaft causes it to traverse the inner faces of the friction disks 3132 along diametrical lines which are parallel with the propeller shaft. Normally the propeller shaft is held up so that the driven disk is out of operative engagement with the friction disks, by means of mechanism which is hereinafter described.

39 indicates the engine crank shaft which is mounted at the forward end of the frame and extends longitudinally thereof, and is substantially in line with the propeller shaft 19 when the latter is in its normal position. Said crank shaft is provided at its forward end with the usual hand-crank 40 for starting the engine.

41 (see Fig. 3) indicates the prime mover for driving the crank shaft .39, which, in

the illustration, is a four-cylinder gasolene engine,

42 indicates a fly-wheel mounted on the rear end portion of the crank shaft 39, as best shown in Figs. 4 and 5. Said fly-wheel is rigidly secured to the crank shaft in any suitable way, but preferably by means of a key 43 shown in Fig. 4.

44 indicates a bevel drive disk, which is mounted .on the inner or rear end of the crank shaft 39 beside the fly-wheel 42. Said drive disk is provided on its periphery with a friction rim 45, which engages the beveled rim of the friction disks 3132, as best shown in Fig. 4, and transmits the power of the engine to such disks. The drive disk 44 is movable toward and from the fiy-wheel 42, but rotates therewith,this operation being provided for by connecting the drive disks 44 with the fly-wheel 42 by means of pins 46 which project forward from the forward face of the disk 44 and pass through holes 47 in the fly-wheel near the center thereof, asshown in Figs. 4, 6 and 7. The movement of the disk 44 longitudinally upon the crank shaft thus provided for is sufficient to enable the disk 44 to be moved out of engagement with the friction disks 3l32, so that said disk 44 may then rotate freely without driving the disks 3132. For the purpose of pressing the disk 44 toward the disks 31--32 and into operative engagement therewith, I provide a lever 48 which is mounted at its upper end on pivots 49 carried by a bracket 50 which forms a part of a frame or housing 51 which extends under and partly incloses the transmission mechanism, and also carries the engine, being provided with a forwardly-extending bracket 52 for that purpose, as shown in Fig. 4. The lever 48 is forked at its upper end, as best shown at 53 in Fig. 8, the forked portion bearing against an antifriction bearing-plate 54 mounted on the hub 55 of the fly-wheel and coiiperating with a plate 56 and balls 57 to form an antifriction thrust-bearing between the lever 48 and the outer ends of the pins 46, as best shown in Fig. 4. As therein appears, the plate 56 fits against the outer ends of the pins 46 so that when the lower end of the lever 48 is drawn backward it acts to press the pins 46 backward, consequently moving the drive disk 44 toward the friction disks 3132. Thus the drive disk 44 may be caused to bear against the friction disks 3132 with greater or less force, as desired. The lever 48 is operated from a foot-lever 58 fulcrumed at 59, as shown in Fig. 4, and connected with the lever 48 by means of a connecting bar 60, a connecting rod 61 and a spring 62.

In the construction shown, the forward end of the connecting bar 60 is bent downward substantially at right angles,the rear end of the rod 61 being connected with the lower end of the bar 60, the foward end of the rod 61 passing through an eye 63 at the lower end of thelever 48. The spring 62 is fitted on the rod'61 between the eye 68 and an adjustable nut 64 on the forward end of the rod 61, as shown in Fig. 4. By this construction by pressing forward on the upper end of the foot-lever 58 the rod 61 is drawn backward and, through the spring 62, yieldingly presses backward the lower end of the lever 48, thereby moving the drive disk back into contact with the disks 3132. The parts are so adjusted that the spring 62 normally holds the drive disk 44 lightly in contact with the friction disks 3132, and also holds the propeller shaft up so that the driven disk is out of contact with said friction disks, as hereinafter described. The foot-lever 58 is placed a little to one side of the center of the frame, the lower end 65 of said lever being offset, as shown in Fig. 10, so as to bring the connect-- ing bar and rod 61 centrally under the disks 3132.

The drive disk 44 is provided at its rear face with a conical clutch-member 66, which is adapted to coact with the clutchmember 23 of the driven disk 18, as shown in Figs. 4 and 5, so that by moving the driven disk 18 forward into engagement with the drive disk 44 said driven disk may be driven directly from said drive disk. It will be apparent that inasmuchas the friction disks 3132 are driven by the engagement of the peripheries thereof with the drive disk 44, when the driven disk is moved forward so that its clutch-member is brought almost into operative engagement withthe clutch-member of the drive disk, said driven disk will be rotating at approximately the same speed as the drive disk; consequently when the clutch-members of the drive disk 44 and driven disk 18 come into operative engagement there is no appreciable jar or shock; and the same is true when the reverse operation takes place. When the driven disk 18 is moved firmly into contact with the drive disk 44, it operates to force said drive disk forward or toward the flywheel, thereby moving it out of engagement with the disks 31-32. It is also desirable that when this engagement is efiected the driven disk 18 be lifted sufiiciently to move it out of engagement with the disks 3l: 2 so that the latter disks may come to rest and stand idle while the machine is on direct drive. To accomplish this result the crank shaft 39 is set so that its rear or inner end is slightly higher than the position of the forward end of the propeller shaft 14 when the driven disk is in operative engagement with the friction disks 3182. The result is that when the conical clutch-members of the drive and driven disks move into engagement the forward end of the propeller shaft is lifted slightly and consequently the driven disk 18 disengages the friction disks 3132 at the same time that the drive disk 44 is moved forward out of engagement therewith.

As hereinbefore suggested, the spring 62 normally holds the driven disk 18 up out of operative engagement with the friction disks 31-32, but said driven disk may be pressed more or less firmly into contact with the friction disks 31-32 by pressing forward on the foot-lever 58,this result being secured through the following mechanism: 67 indicates an arm, the upper end of which embraces the rear portion of the hub 21 of the driven disk 18, its lower end being provided with a bearing block 68 which fits on and slides longitudinally of the connecting bar 60, as shown in Figs. 4 and 11. The arm 67 is preferably made in two parts secured together by bolts 6970, the bolt 70 also serving to hold the block 68 in position and to permit of its vertical adjustment.

71 indicates a crank mounted at its upper end on a pivot 7 2 carried in the upper end of a standard 73 carried by the frame or housing 51 and pivotally connected by a wristpin 74 with the forward end of the bar 60. The spring 62 operates to pull forward on the bar 60 and consequently the crank 71 normally extends forward and downward, as shown in Fig 4. By moving the upper end of the foot-lever 58 forward, however, the connecting bar 60 is drawnbackward against the tension of the spring 62, thereby swinging the wrist-pin 74 backward and downward, which consequently carries the bar 60 downward, the lower end of the lever 58 and the crank 77 swinging in parallelism, and pulls down on the arm 67 thus pressing the driven disk 18 down into contact with the disks 3132. By this construction the driven disk 18 may be held in engagement with the inclined disks by pressure which is substantially constant, regardless of the position of the driven disk on the shaft 14. In other words, a given pressure applied to the lever 58 is applied with like efliectiveness to the driven disk regardless of the position of the latter upon the shaft. At the same time the backward movement of the bar 60 pulls back the lever 48, which consequently presses the drive disk 44 more closely into contact with the disks 8132. Thus actuation of the foot-lever 58 in the manner described simultaneously operates to press the drive disk 44 more closely into contact with the friction disks 31--32 and to move the driven disk 18 down into contact with said disks 3132. This is an important feature, since when coasting or while the engine is running when the car is standing still the driven disk is automatically disconnected from the friction disks 3132 and the contact of the drive disk 44 with said friction disks is very light and there is no excessive or useless wear on the friction surfaces of said disks. IVhen, however, more power is required to propel the car, the several friction disks may be held as tightly in contact as may be desired so as to prevent slippage both between the drive disk and the friction disks 31 32, and between the latter disks and the driven disk. This feature I believe to be broadly new, and, so far as I am aware, it is also broadly new to provide a friction operated transmission mechanism of the type described in combination with means for securing a direct drive independently of such friction drive mechanism. Furthermore, I wish it to be understood that while I have described in detail the embodiment of my invention shown in the drawings, I do not restrict myself to the construction shown and described, as many variations thereof may be made without departing from my invention, which is generic in character. The claims hereinafter made are, therefore, to be construed accordingly.

That which I claim as my invention, and desire to secure by Letters Patent, is,

1. The combination of a prime mover, a driven shaft, friction-operated transmission mechanism for driving said shaft from said prime mover, and means for connecting said shaft directly with the prime mover and for automatically moving said shaft to disconnect it from said transmission mechanism.

2. The combination of a prime mover, a driven shaft, friction-operated transmission mechanism for driving said shaft from said prime mover, and means for moving said shaft to connect it directly with the prime mover and to automatically disconnect said prime mover and said shaft from said transmission mechanism.

3. The combination of a motor, a drive disk connected with said motor, friction disks driven by said drive disk, a driven disk coacting' with said friction disks, and means for moving said driven disk to disconnect it from said friction disks and to connect it directly with said drive disk.

4:. The combination of a motor, inclined friction disks driven thereby, a driven disk adapted to coact with said inclined disks and movable out of engagement therewith, and means for driving said driven disk directly from the motor.

5. The combination of a motor, inclined friction disks driven thereby, a driven disk adapted to coact with said inclined disks, and means for disconnecting said driven disk from said inclined disks and for driving said driven disk directly from the motor.

6. The combination of a motor, a drive disk connected with said motor, inclined friction disks driven by said drive disk, and

a driven disk coacting with said friction disks, and adapted to be driven directly from the motor.

7. The combination of a motor, a drive disk connected with said motor, friction disks driven by said drive disk, a driven disk coacting with said friction disks, and movable to disengage the same, and means for moving said driven disk to connect it direct-1y with the drive disk and to simultaneously disconnect it from said friction disks.

8. The combination of a motor, inclined friction disks, a shaft extending between said disks, a driven disk mounted on said shaft and engaging said friction disks, a drive disk driven by said motor and operatively engaging said friction disks for driving the same, andmeans for connecting said drive disk and driven disk independently of said friction disks. Y

9. The combination of a motor, inclined friction disks, a shaft extending between said disks, a driven disk mounted on said shaft and engaging said friction disks, a drive disk driven by said motor and o-peratively engaging said friction disks for driving the same, means for connecting said drive disk and driven disk independently of said friction disks, and means for automatically disengaging said drive disk from said friction disks when said drive and driven disks are directly connected together.

10. The combination of a motor, inclined friction disks, a shaft extending between said disks, a driven disk mounted on said shaft and engaging said friction disks, a drive disk driven by said motor and operatively engaging said friction disks for drivi the same, means for connecting said drive disk and driven disk independently of said friction disks, and means for automatically disengaging said driven disk from said friction disks when said drive and driven disks are directly connected together.

11. The combination of a motor, inclined friction disks, a shaft extending between said disks, a driven disk mounted on said shaft and engaging said friction disks, a

drive disk driven by said motor and opera tively engaging said friction disks for driving the same, means for connecting said drive disk and driven disk independently of said friction disks, and means for automatically disengaging said drive disk and said driven disk from said friction disks when said drive and driven disks are directly connected together.

12. The combination of a motor, inclined friction disks, a shaft extending between said disks, a driven disk mounted on said shaft and engaging said friction disks, a drive disk driven by said motor and operatively engaging said friction disks for driving the same, and clutch mechanism for. con

ing said drive disk and driven disk inde-' pendently of said friction disks, and means for automatically disengaging said drive disk and said driven disk from said friction disks when said drive and driven disks are directly connected together.

14;. The combination of a motor, inclined friction disks, a shaft extending between said friction disks, a driven disk mounted on said shaft and engaging said friction disks, said shaft being movable to carry said driven disk into or out of engagement with said friction disks, a drive disk connected with the motor and engaging said friction disks for driving the same, and means for connecting said drive disk and driven disk together independently of said friction disks.-

15. The combination of a motor, inclined friction disks, a shaft extending between said friction disks, a driven disk mounted on said shaft and engaging said friction disks, said shaft being movable to carry said driven disk into or out of engagement with said friction disks, a drive disk connected with the motor and engaging said friction disks for driving the same, means for connecting said drive disk and driven disk together independently of said friction disks, and means for automatically moving the shaft to disconnect said driven disk from said friction disks when said driven disk is connected directly with said drive disk.

16. The combination of a motor, inclined friction disks, a shaft extending between said friction disks, a driven disk mounted on said shaft and engaging said friction disks, said shaft being movable to carry said driven disk into or out of engagement with said friction disks, a drive disk connected with the motor and engaging said friction disks for driving the same, means for connecting said drive disk and driven disk together independently of said friction disks, and means for automatically moving the shaft to disconnect said driven disk from said friction disks when said driven disk is connected directly with said drive disk and for simul- ';taneously disconnecting said drive disk mounted on said shaft and movable longitudinally thereof, said driven disk being adapted to'engage said friction disks and being movable toward and from the centers thereof and toward and from said drive disk, and means for moving said driven disk into direct engagement with said drive disk.

l8.-The combination of a motor, a shaft, inclined friction disks at opposite sides of said shaft, a drive disk connected with the motor and movable into and out of engagement with said friction disks, a driven disk mounted on said shaft and movable longitudinally thereof, said driven disk being adapted to engage said friction disks and being movable toward and from the centers thereof and toward and from said drive disk, and means for moving said driven disk into direct engagement with said drive disk,

and for simultaneously moving said drive and driven disks out of engagement with the friction disks.

19. The combination of a motor, a drive disk driven thereby, inclined friction disks driven by said drive disk, a shaft extending between said friction. disks, a driven disk mounted on said shaft and movable toward and from the centers of said friction disks, and means for varying. the pressure of said drive and driven disks upon said friction disks.

20. The combination of a motor, a drive disk driven thereby, inclined friction disks driven by said drivedisk, a shaft extending between said friction disks, a driven disk mounted on said shaft and movable toward and from the centers of said friction disks, and means for simultaneously varying the pressure of said drive and driven disks upon said friction disks.

21. The combination of a motor, a drive disk driven thereby, inclined friction disks driven by said drive disk, a shaft extending between said friction disks, a driven disk mounted on said shaft and movable toward and from the centers of said friction disks, and lever mechanism simultaneously varying the pressure of said drive and driven disks upon said friction disks.

22. The combination of a motor, a drive tion disks, and a lever for moving said driven disk upon said shaft.

23. The combination of a motor, a drive disk driven thereby, inclined friction disks driven by said drive disk, a shaft extending between said friction disks, a driven disk mounted on said shaft and movable toward and from the centers of said friction disks,

7 lever mechanism for simultaneously varying the pressure of said drive and driven disks upon said friction disks, and a lever for moving said driven disk upon said shaft.

24. The combination of a motor, a drive disk driven thereby, inclined friction disks driven by said drive disk, a shaft extending between said friction disks, a driven disk mounted on said shaft and movable toward and from the centers of said friction disks, means for moving the driven disk into direct engagement with the drive disk, lever mechanism for varying the pressure of said drive and driven disks upon said friction disks, and means operating to normally hold the driven disk out of engagement with the friction disks.

25. The combination of a motor, oppositely-disposed inclined friction disks, a drive disk connected to the motor and driven thereby, said drive disk being movable into and out of contact with said friction disks, a spring acting to move said drive disk into engagement with said friction disks, and a driven disk driven by said friction disks and movable out of engagement therewith.

26. The combination of a motor, oppositely-disposed inclined friction disks, a drive disk connected to the motor and driven thereby, said drive disk being movable into and out of contact with said friction disks, a spring acting to move said drive disk into engagement with said friction disks, and a driven disk driven by said friction disks and movable out of engagement therewith, said driven disk being movable into engagement with said drive disk.

27. The combination of oppositely-disposed friction disks. set at an angle to each other, a driven disk adapted to engage said friction disks, and a spring operating to normally hold said driven disk outof engagement with said friction disks.

28. The combination of oppositely-disposed friction disks set at an angle to each other, a shaft extending between said disks, a driven disk mounted on said shaft and adapted to engage said friction disks, and a spring operating to normally hold said driven disk out of engagement with said friction disks.

29. The combination of oppositely-disposed friction disks, a drive disk movable into and out of engagement with said friction disks, a driven disk adapted to engage said friction disks, and a springoperating to normally hold said drive disk in engagement with said friction disks and said driven disk out of engagement therewith.

30. The combination of oppositely-disposed inclined friction disks, a driven disk adapted to engage said friction disks and movable toward and from the centers there of and into and out of engagement therewith, a motor, a motor shaft,'a fly-wheel fixedly mounted on said motor shaft, and a drive disk mounted on said motor shaft and engaging said friction disks for driving the same, said drive disk being movable upon said shaft out of engagement with said friction disks.

31. The combination of oppositely-disposed inclined friction'disks, a driven disk adapted to engage said friction disks and movable toward and from the centers thereof and into and out of engagement therewith, a motor, a motor shaft, a fly-wheel fixedly mounted on said motor shaft, and a drive disk mounted on said motor shaft and engaging said friction disks for driving the same, said drive disk being movable upon said shaft out of engagement with said friction disks, and said driven disk being movable into engagement with said drive disk.

32. The combination of oppositely-dis posed inclined friction disks, a driven disk adapted to engage said friction disks and movable toward and from the centers thereof, a motor shaft, a fiy-wheel fixedly mounted on said motor shaft, and a drive disk mounted on said motor shaft and engaging said friction disks for driving the same, said drive disk being movable u on said shaft out of engagement with said fgiction disks.

33. The combination of oppositely-disposed inclined friction disks, a driven disk adapted to engage said friction disks and movable into and out of engagement therewith, a motor, a motor shaft, a fly-wheel fixedly mounted on said motor shaft, a drive disk mounted on said motor shaft adjacent to the fly-wheel and non-rotatably connected therewith, and lever mechanism for moving said drive disk toward the friction disks.

34:. The combination of oppositely-disposed friction disks, a driven disk adapted to engage said friction disks, a motor, a motor shaft, a fly-wheel fixedly mounted on said motor shaft, a drive disk mounted on said motor shaft adjacent to the fly-wheel and movable longitudinally thereon, said drive-disk having pins projecting through holes in said fly-wheel and non-rotatably connecting said fiy-wheel and drive disk, a lever, means between said lever and said pins whereby by actuating said lever the drive disk may be moved upon said motor shaft, and a lever connected with said first-mentioned lever for actuating the same.

35. The combination of oppositely-disposed friction disks, a driven disk adapted to engage said friction disks, a motor, a motor shaft, a fiy-wheel fixedly mounted on said motor shaft, a drive disk mounted on said motor shaft adjacent to the fly-wheel and movable longitudinally thereon, said drive disk having pins projecting through holes in said fly-wheel and non-rotatably connecting said fly-wheel and drive disk, a lever, means between said lever and said pins whereby by actuating said lever the drive disk may be moved upon said motor shaft, and a spring acting to operate said 1ever to normally hold the drive disk in engagement with the friction disks.

36. The combination of a prime-mover, a driven shaft, friction-operated transmission mechanism for driving said shaft from said prime-mover, and means for connecting said shaft directly with the prime-mover and for moving said shaft to disconnect it from said transmission mechanism.

37. The combination of a motor, a drivedisk connected with said motor, friction disks driven by said drive-disk, a driven disk coacting with said friction disks and movable to disengage the same, and means for moving said driven disk to disengage it from said friction disks and to connect it directly with the drive-disk.

38. The combination of oppositely-inclined friction disks, a shaft extending between said friction disks, a driven disk mounted on said shaft and movable toward and from the centers of said friction disks, and means for moving said shaft to vary the pressure of said driven disk upon said friction disks.

39. The combination of oppositely-inclined friction disks, a shaft extending between said friction disks, a driven disk mounted on said shaft and movable toward and from the centers of said friction disks, and means for moving said shaft to vary the pressure of said driven disk upon said friction disks, comprising a bar, means movable upon said bar and connected with said shaft, and means for bodily moving said bar vertically.

4:0. The combination of oppositely-inclined friction disks, a shaft extending between said friction disks, a driven disk mounted on said shaft and movable toward and from the centers of said friction disks, and means for moving said shaft to vary the pressure of said drive disk upon said friction disks, comprising members adapted to rock in parallelism, a bar connected with said members, means movable upon said bar and connected with the shaft, and a lever for rocking said members.

JOSEPH DAIN.

l/Vitnesses JOHN L. JACKSON, MINNIE A. HUNTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

